In Tokyo, Japan, memories of the March 11, 2011, earthquake returned when a severe quake struck south of the metropolis on May 30. With a magnitude of 7.8, it made the list of the world’s strongest quakes, with the same intensity as the one in Nepal on April 25. Fortunately, the Japan quake was centered more than 500 miles offshore, and no tsunami warning was issued for the coast near Tokyo.